./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b63905375af38d9971341930078b6c47230c38fd ................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b63905375af38d9971341930078b6c47230c38fd ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 08:02:09,043 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:02:09,044 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:02:09,051 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:02:09,051 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:02:09,051 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:02:09,052 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:02:09,053 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:02:09,053 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:02:09,054 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:02:09,054 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:02:09,054 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:02:09,055 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:02:09,055 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:02:09,056 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:02:09,056 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:02:09,056 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:02:09,057 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:02:09,058 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:02:09,059 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:02:09,059 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:02:09,060 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:02:09,061 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:02:09,061 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:02:09,061 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:02:09,061 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:02:09,062 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:02:09,062 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:02:09,063 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:02:09,063 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:02:09,063 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:02:09,063 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:02:09,064 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:02:09,064 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:02:09,064 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:02:09,064 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:02:09,065 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 08:02:09,071 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:02:09,072 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:02:09,072 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 08:02:09,072 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 08:02:09,073 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:02:09,073 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:02:09,073 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:02:09,073 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:02:09,073 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 08:02:09,073 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 08:02:09,073 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 08:02:09,073 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:02:09,073 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 08:02:09,073 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 08:02:09,073 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 08:02:09,073 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 08:02:09,074 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:02:09,074 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 08:02:09,074 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 08:02:09,075 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 08:02:09,075 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63905375af38d9971341930078b6c47230c38fd [2018-12-08 08:02:09,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:02:09,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:02:09,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:02:09,101 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:02:09,101 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:02:09,102 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-08 08:02:09,136 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/data/41bc62b48/cb30bd8489044aadb9f41c4170ff8d1f/FLAG6e24db193 [2018-12-08 08:02:09,582 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:02:09,583 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-08 08:02:09,588 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/data/41bc62b48/cb30bd8489044aadb9f41c4170ff8d1f/FLAG6e24db193 [2018-12-08 08:02:09,600 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/data/41bc62b48/cb30bd8489044aadb9f41c4170ff8d1f [2018-12-08 08:02:09,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:02:09,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 08:02:09,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:02:09,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:02:09,606 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:02:09,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ccca87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09, skipping insertion in model container [2018-12-08 08:02:09,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:02:09,623 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:02:09,717 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:02:09,721 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:02:09,736 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:02:09,748 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:02:09,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09 WrapperNode [2018-12-08 08:02:09,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:02:09,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 08:02:09,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 08:02:09,748 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 08:02:09,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 08:02:09,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:02:09,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:02:09,763 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:02:09,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (1/1) ... [2018-12-08 08:02:09,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:02:09,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:02:09,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:02:09,816 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:02:09,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:02:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 08:02:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 08:02:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 08:02:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 08:02:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 08:02:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 08:02:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 08:02:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 08:02:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:02:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:02:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 08:02:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 08:02:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 08:02:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 08:02:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-12-08 08:02:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-12-08 08:02:09,962 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:02:09,963 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 08:02:09,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:02:09 BoogieIcfgContainer [2018-12-08 08:02:09,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:02:09,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 08:02:09,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 08:02:09,965 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 08:02:09,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:02:09" (1/3) ... [2018-12-08 08:02:09,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784e7c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:02:09, skipping insertion in model container [2018-12-08 08:02:09,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:09" (2/3) ... [2018-12-08 08:02:09,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784e7c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:02:09, skipping insertion in model container [2018-12-08 08:02:09,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:02:09" (3/3) ... [2018-12-08 08:02:09,968 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-12-08 08:02:09,976 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 08:02:09,980 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 08:02:09,989 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 08:02:10,005 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:02:10,005 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 08:02:10,005 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 08:02:10,005 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 08:02:10,006 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:02:10,006 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:02:10,006 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 08:02:10,006 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:02:10,006 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 08:02:10,016 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-08 08:02:10,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 08:02:10,019 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:02:10,020 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:02:10,021 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 08:02:10,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:02:10,024 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-12-08 08:02:10,025 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:02:10,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:02:10,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:02:10,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:02:10,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:02:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:02:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:02:10,138 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 08:02:10,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:02:10 BoogieIcfgContainer [2018-12-08 08:02:10,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 08:02:10,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:02:10,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:02:10,157 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:02:10,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:02:09" (3/4) ... [2018-12-08 08:02:10,160 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 08:02:10,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:02:10,160 INFO L168 Benchmark]: Toolchain (without parser) took 557.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:10,161 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:02:10,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.14 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:10,162 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.49 ms. Allocated memory is still 1.0 GB. Free memory was 946.3 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:10,162 INFO L168 Benchmark]: Boogie Preprocessor took 52.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -226.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:10,163 INFO L168 Benchmark]: RCFGBuilder took 147.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:10,163 INFO L168 Benchmark]: TraceAbstraction took 193.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:10,163 INFO L168 Benchmark]: Witness Printer took 2.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:02:10,165 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.14 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.49 ms. Allocated memory is still 1.0 GB. Free memory was 946.3 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -226.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 147.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 193.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 33, overapproximation of someUnaryDOUBLEoperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 60. Possible FailurePath: [L12] double C0 = 1.414213538; [L13] double C1 = 0.229761391; [L14] double C2 = 1.296735525; [L15] double C3 = -0.901098370; [L16] double C4 = 0.493553400; [L17] double C5 = -0.118958666; VAL [\old(C0)=13, \old(C1)=28, \old(C2)=16, \old(C3)=31, \old(C4)=15, \old(C5)=25, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L53] double x,y; [L55] x = __VERIFIER_nondet_double() [L58] CALL, EXPR sqrt_custom(x) VAL [\old(a)=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L26] union u x; [L27] double r; [L28] int exp; [L30] x.d = a [L32] EXPR x.i[0] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L33] EXPR x.i[0] [L33] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L34] EXPR x.d [L34] r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=12, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={24:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [\old(a)=12, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={24:0}] [L45] x.i[0] = (exp/2 + 511) << 20 [L46] EXPR x.d [L46] r = r * x.d [L48] return r; [L48] return r; VAL [\old(a)=12, \result=27, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, r=27] [L58] RET, EXPR sqrt_custom(x) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, sqrt_custom(x)=27, x=12] [L58] y = sqrt_custom(x) [L60] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L9] COND TRUE !(cond) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 08:02:11,380 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:02:11,381 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:02:11,388 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:02:11,388 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:02:11,388 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:02:11,389 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:02:11,390 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:02:11,391 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:02:11,392 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:02:11,393 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:02:11,393 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:02:11,393 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:02:11,394 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:02:11,395 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:02:11,395 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:02:11,396 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:02:11,397 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:02:11,398 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:02:11,399 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:02:11,399 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:02:11,400 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:02:11,401 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:02:11,401 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:02:11,402 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:02:11,402 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:02:11,403 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:02:11,403 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:02:11,403 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:02:11,404 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:02:11,404 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:02:11,404 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:02:11,404 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:02:11,404 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:02:11,405 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:02:11,405 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:02:11,405 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 08:02:11,415 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:02:11,415 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:02:11,416 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 08:02:11,416 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 08:02:11,416 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:02:11,416 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:02:11,416 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:02:11,417 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:02:11,417 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 08:02:11,417 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 08:02:11,417 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:02:11,417 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 08:02:11,417 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 08:02:11,417 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 08:02:11,418 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 08:02:11,418 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 08:02:11,418 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 08:02:11,418 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 08:02:11,418 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:02:11,418 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 08:02:11,418 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:02:11,419 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:02:11,419 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 08:02:11,419 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 08:02:11,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:02:11,419 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:02:11,419 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 08:02:11,419 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 08:02:11,419 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 08:02:11,420 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 08:02:11,420 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 08:02:11,420 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 08:02:11,420 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63905375af38d9971341930078b6c47230c38fd [2018-12-08 08:02:11,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:02:11,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:02:11,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:02:11,455 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:02:11,455 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:02:11,456 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-08 08:02:11,492 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/data/294284126/2a292eef1d7c4249a6050715992a248e/FLAGeaf7b4305 [2018-12-08 08:02:11,809 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:02:11,809 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-08 08:02:11,813 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/data/294284126/2a292eef1d7c4249a6050715992a248e/FLAGeaf7b4305 [2018-12-08 08:02:11,821 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/data/294284126/2a292eef1d7c4249a6050715992a248e [2018-12-08 08:02:11,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:02:11,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 08:02:11,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:02:11,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:02:11,826 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:02:11,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:11,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a12c072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11, skipping insertion in model container [2018-12-08 08:02:11,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:11,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:02:11,841 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:02:11,937 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:02:11,941 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:02:11,959 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:02:11,975 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:02:11,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11 WrapperNode [2018-12-08 08:02:11,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:02:11,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 08:02:11,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 08:02:11,976 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 08:02:11,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:11,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:11,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 08:02:11,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:02:11,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:02:11,992 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:02:12,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:12,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:12,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:12,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:12,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:12,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:12,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (1/1) ... [2018-12-08 08:02:12,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:02:12,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:02:12,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:02:12,045 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:02:12,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:02:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-08 08:02:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-08 08:02:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 08:02:12,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 08:02:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 08:02:12,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 08:02:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 08:02:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 08:02:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:02:12,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:02:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 08:02:12,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 08:02:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 08:02:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 08:02:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-12-08 08:02:12,076 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-12-08 08:02:14,296 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 08:02:15,131 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:02:15,131 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 08:02:15,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:02:15 BoogieIcfgContainer [2018-12-08 08:02:15,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:02:15,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 08:02:15,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 08:02:15,134 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 08:02:15,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:02:11" (1/3) ... [2018-12-08 08:02:15,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e61126d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:02:15, skipping insertion in model container [2018-12-08 08:02:15,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:02:11" (2/3) ... [2018-12-08 08:02:15,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e61126d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:02:15, skipping insertion in model container [2018-12-08 08:02:15,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:02:15" (3/3) ... [2018-12-08 08:02:15,136 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-12-08 08:02:15,142 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 08:02:15,147 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 08:02:15,155 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 08:02:15,171 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:02:15,172 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 08:02:15,172 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 08:02:15,172 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 08:02:15,172 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:02:15,173 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:02:15,173 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 08:02:15,173 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:02:15,173 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 08:02:15,181 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-08 08:02:15,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 08:02:15,184 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:02:15,185 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:02:15,186 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 08:02:15,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:02:15,189 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-12-08 08:02:15,192 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 08:02:15,192 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-08 08:02:15,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:02:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:02:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:02:18,071 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 08:02:18,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:02:18 BoogieIcfgContainer [2018-12-08 08:02:18,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 08:02:18,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:02:18,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:02:18,102 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:02:18,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:02:15" (3/4) ... [2018-12-08 08:02:18,104 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 08:02:18,135 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_46a329d4-5dbe-47e8-979c-a259e4a46549/bin-2019/uautomizer/witness.graphml [2018-12-08 08:02:18,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:02:18,136 INFO L168 Benchmark]: Toolchain (without parser) took 6313.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -126.8 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:18,137 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:02:18,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.67 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:18,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.89 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:02:18,138 INFO L168 Benchmark]: Boogie Preprocessor took 52.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -202.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:18,138 INFO L168 Benchmark]: RCFGBuilder took 3087.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:18,138 INFO L168 Benchmark]: TraceAbstraction took 2969.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-12-08 08:02:18,139 INFO L168 Benchmark]: Witness Printer took 33.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:02:18,140 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.67 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.89 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -202.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3087.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2969.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Witness Printer took 33.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] double C0 = 1.414213538; [L13] double C1 = 0.229761391; [L14] double C2 = 1.296735525; [L15] double C3 = -0.901098370; [L16] double C4 = 0.493553400; [L17] double C5 = -0.118958666; VAL [\old(C0)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000030, \old(C1)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, \old(C2)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000015, \old(C3)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020, \old(C4)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000025, \old(C5)=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000049, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L53] double x,y; [L55] x = __VERIFIER_nondet_double() [L58] CALL, EXPR sqrt_custom(x) VAL [\old(a)=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L26] union u x; [L27] double r; [L28] int exp; [L30] x.d = a [L32] EXPR x.i[0] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L33] EXPR x.i[0] [L33] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L34] EXPR x.d [L34] r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=9731564545.6875, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, r=-13704217330150313000000000000, x={2:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [\old(a)=9731564545.6875, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-13704217330150313000000000000, x={2:0}] [L45] x.i[0] = (exp/2 + 511) << 20 [L46] EXPR x.d [L46] r = r * x.d [L48] return r; [L48] return r; VAL [\old(a)=9731564545.6875, \result=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011] [L58] RET, EXPR sqrt_custom(x) VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, sqrt_custom(x)=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011, x=9731564545.6875] [L58] y = sqrt_custom(x) [L60] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L9] COND TRUE !(cond) VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 2.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...